#!/bin/bash

# Slackware build script for MathGL

# Written by Jože Zobec <jozze.zepl@gmail.com>

# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=mathgl
VERSION=${VERSION:-2.4.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# GSL support
if [ ${GSL:-no} = "no" ]; then
  GSL_FLAG="NO"
else
  GSL_FLAG="YES"
fi

# Octave support
if [ ${OCTAVE:-no} = "no" ]; then
  OCTAVE_FLAG="NO"
else
  OCTAVE_FLAG="YES"
fi

# OpenMPI support
if [ ${OPENMPI:-no} = "no" ]; then
  OPENMPI_FLAG="NO"
else
  OPENMPI_FLAG="YES"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvzf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \;

sed -i CMakeLists.txt \
  -e "s|lib/cmake/mathgl|lib$LIBDIRSUFFIX/cmake/mathgl|" \
  -e "s|\"lib\"|\"lib$LIBDIRSUFFIX\"|"

mkdir -p build
cd build
 cmake -D CMAKE_C_FLAGS="$SLKCFLAGS" \
       -D CMAKE_CXX_FLAGS="$SLKCFLAGS" \
       -D CMAKE_INSTALL_PREFIX:PATH=/usr \
       -D MGL_LIB_INSTALL_DIR:STRING=lib$LIBDIRSUFFIX \
       -D enable-doc:BOOL=OFF \
       -D enable-double:BOOL=ON \
       -D enable-gif:BOOL=ON \
       -D enable-png:BOOL=ON \
       -D enable-jpeg:BOOL=ON \
       -D enable-pdf:BOOL=ON \
       -D enable-gsl:BOOL=$GSL_FLAG \
       -D enable-lgpl:BOOL=ON \
       -D enable-qt:BOOL=ON \
       -D enable-mpi:BOOL=$OPENMPI_FLAG \
       -D enable-python:BOOL=ON \
       -D enable-pthread:BOOL=ON \
       -D enable-openmp:BOOL=OFF \
       -D enable-octave:BOOL=$OCTAVE_FLAG \
       -D enable-opengl:BOOL=ON \
       -D enable-wx:BOOL=ON \
       -D enable-qt5:BOOL=ON \
       -D CMAKE_BUILD_TYPE:STRING=$ARCH-slackware-linux .. -L
 make
 make install DESTDIR=$PKG
cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
	  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION

cp -a \
  AUTHORS COPYING COPYING_LGPL INSTALL README README_V2 todo.txt ChangeLog.txt \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
